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This is the tiniest electret microphone we have ever seen. It is only 6mm dia. x 2.7mm thick. Has dust cover screen and 2 tiny pins for PC board mounting. Operates on 1.5V up to 3VDC. Sensitivity -45(dB/Pa), impedance 1KΩ, Rated operational voltage 2VDC, current consumption 0.5mA, Hosiden Model KUB2823. Sold in a package of 5. Retails for over $15.
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